iPhone Wifi Problem: High ping

Question

iPhone Wifi Problem: High ping

Im having problems with my iPhone when i connect it to my wifi router DLink DI-524.
The connection is slow. I pinged my iPhone to see what happens and I got this:

--------------------------------------------------------------------------------
+Disparando 192.168.0.106 com 32 bytes de dados:+

+Resposta de 192.168.0.106: bytes=32 tempo=3ms TTL=64+
+Resposta de 192.168.0.106: bytes=32 tempo=382ms TTL=64+
+Resposta de 192.168.0.106: bytes=32 tempo=196ms TTL=64+
+Resposta de 192.168.0.106: bytes=32 tempo=320ms TTL=64+
+Resposta de 192.168.0.106: bytes=32 tempo=1209ms TTL=64+
+Resposta de 192.168.0.106: bytes=32 tempo=2ms TTL=64+
--------------------------------------------------------------------------------

See how the latency is extremely high and unstable.
So I tried to connect it via AD-HOC with my encore wireless adapter and it works just fine. See the ping:

--------------------------------------------------------------------------------
+Disparando 192.168.0.106 com 32 bytes de dados:+

+Resposta de 192.168.0.106: bytes=32 tempo=1ms TTL=64+
+Resposta de 192.168.0.106: bytes=32 tempo=2s TTL=64+
+Resposta de 192.168.0.106: bytes=32 tempo=2ms TTL=64+
+Resposta de 192.168.0.106: bytes=32 tempo=3ms TTL=64+
+Resposta de 192.168.0.106: bytes=32 tempo=1ms TTL=64+
--------------------------------------------------------------------------------

But when I try to connect with the encore wireless adapter working as an acess point I get the same problem again. So the problem is "iPhone Wifi + Router". I tried changing the settings on the router config panel and have no success.

Intel Duo Core 1.8 2GB RAM, Windows Vista

Posted on Jul 2, 2008 7:10 PM

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Answer 1

Jul 2, 2008 8:21 PM in response to Eduardo Pinto

Sounds like a router problem.

Have you checked the manufacturer's website to see if there is a firmware update available for your router model?

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Answer 2

Jul 3, 2008 10:43 AM in response to Allan Sampson

This was my last hope 😟 Trying to upgrade the firmware.
But its weird because my Wireless USB adapter have the same problem but just when on Acess Point mode... And only with iPhone.

I will try to upgrade the firmware to see what happens. By the way, is somehow dangerous upgrading the router firmware ?

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Answer 3

Jul 3, 2008 10:46 AM in response to Eduardo Pinto

I will try to upgrade the firmware to see what happens. By the way, is somehow dangerous upgrading the router firmware ?

If there is a firmware update available for your router model that you haven't installed, there is a reason for the firmware update. This shouldn't be dangerous and will likely resolve the problem.

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Answer 4

Jul 3, 2008 11:12 AM in response to Allan Sampson

My router is the D-Link DI-524 Rev.G and there is no firmware update for it :/
Im using the 3.00 that came from factory. And the last firmware for the Rev.G is the 3.00.
As you can see here: http://www.dlink.com.br/suporte/index.php

So I ran out of options 😟

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Answer 5

Jul 3, 2008 11:13 AM in response to Eduardo Pinto

I suggest contacting D-Link technical support.

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Answer 6

Jason L

Community Specialist

Jul 3, 2008 3:42 PM in response to Eduardo Pinto

Hey Eduardo,

Try changing the channel of the Wi-Fi network. If the access point is currently using channel 7 change it to 10 or 11. Just change the channel number by about 3, up or down.

This article also provides sources of Wi-Fi network interference.
http://docs.info.apple.com/article.html?path=AirPortUtility/5.1/en/ap2082.html

Jason

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Answer 7

Jul 4, 2008 12:48 PM in response to Jason L

Allan, Ive contacted DLink Suport and they said that this could be many problems and they cant solve it for me :O, they suggested contacting Apple. ¬¬

And Jason, I tried all the channels and the problem remains.
What about the other configurable settings at the router Panel like:
+Beacon Interval (msec, range: 1~65535, default: 100)+
+RTS Threshold (range: 256~2432, default: 2432)+
+Fragmentation (range: 256~2346, default: 2346, even number only)+
+DTIM Interval (range: 1~255, default: 3)+
+Wireless Mode+

I tried doing some changes on this values and nothing happened 😟

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Answer 8

Jul 5, 2008 11:15 AM in response to Eduardo Pinto

I tested other 2 iPhones over my Wi-Fi and occured the same problem.
But a weird thing is happening, I noticed that when Im listening to internet radio over Orb on iPhone, the latencies and the internet works just fine.( 1ms~20ms )

So now Im confused, Could it be some iPhone software that are in conflict with its Wi-Fi ?

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Answer 9

Jul 9, 2008 6:17 AM in response to Eduardo Pinto

Hi, I've seen your thread on macforum also. I've noticing the very same behavior as yours, and I've tried my iPhone with 2 different routers, an Airport Extreme and Airport Express.
I've tried to use Airport Utility to see if something is wrong, and when I check the Wireless Client log window I see that the iMac has Signal level -63, Noise level -87, Rate level 130 Mbits, while the iPhone has the following values: Signal level 26, Noise level 0, Rate level 27 Mbits.
The two machine are inches distant.... now I'm wondering what is the iPhone can cause such a big difference?!? Should the rate be around 54 Mbits if the iPhone wi-fi is at g speed?!?

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Answer 10

Jul 9, 2008 7:55 AM in response to Simone Figlie'

Sorry for the off topic!

Ciao Simone, ma sei propio te?

Sono Davide De Mitri saranno dieci anni che non ci sentiamo!

Se vuoi contattami la mia mail è dvdonline75@gmail.com

Ciao

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